The congenital pathological connection of two or more fingers in part or in whole is a common congenital malformation of the hand, second only to polydactyly, which can occur unilaterally or bilaterally, with a male to female ratio of about 2:1. The combination of only the terminal fingers is called finger-end syndactyly, and is often accompanied by polydactyly and short finger deformity. The manifestations are divided into skin shortage, skeletal deformities, and vascular and neurological deformities. The following are x-rays of syndactyly.